离子对

In order to further study the performance of copper-bearing intrauterine devices, corrosion behavior of copper was examined in a simulated uterine fluid containing proteins.

为研究宫腔液中的生化组份对含铜宫内节育器中铜离子释放行为的影响，在体外模拟试验条件下考察了人血液中的三种蛋白质(白蛋白、丙球蛋白、血红蛋白)对铜腐蚀行为的影响。

Two modified cotton stalk cellulose derivatives (CEN 1, CEN 2) were prepared by re action of epoxy activated cotton stalk cellulose powder with diethylenetriamine or triethylene tetramine , respectively.

我们近期研究［6，7］表明，由农业废弃物棉杆纤维制得的含氮纤维素醚衍生物对有毒的金属离子，尤其是对Hg2＋、Cd2＋、Cr3＋、Pb2＋。

There have been massive researches on improving the properties of protein in recent years, this article emphatically begin with the interaction between tea polyphenol and protein (egg albumen protein, soybean protein isolated, whey protein concentrated, bovine serum albumen), study their functional rules and that under the changed food processing environment (the pH value, salt ion concentration, sucrose density), and then apply the interaction rules into two different kinds of cakes for improving the technology of their production, aiming for provide the new mentality and method on improving the properties of protein as well as speed up the application of tea polyphenol.

本文着重从茶多酚与蛋白质的相互作用着手，研究了茶多酚及其主要单体组分对蛋清蛋白、大豆分离蛋白、乳清浓缩蛋白及牛血清蛋白的功能特性的影响规律，同时也探讨了环境因素(pH值、盐离子浓度、蔗糖浓度)与茶多酚协同作用对蛋白质这些功能特性的影响规律，并且初步应用了这种相互作用规律到两种不同工艺蛋糕的生产中来，目的是为蛋白质功能特性的改善提供新的思路和方法以及加快茶多酚在食品中的应用。

Beet pomace was used as carbon source and inducement to produce pectinase with Aspergills niger HYA4 in the solid fermentation method.

以甜菜渣为碳源和诱导物生产果胶酶，通过单因子和正交实验对黑曲霉(Aspergillus.niger)HYA4固体发酵培养基成分及培养条件进行优化，考察了碳源、有机氮源、无机氮源、碳氮比、无机离子、料水比、通气量等对果胶酶产量的影响。

Nner Mongolian fine wool wethers of two years old with permanent ruminal and duodenal cannulas, divided into 4 groups of 3 at randomly, were used in this trail.

·一 试呛三：不同日粮阴阳离子水平的对绵羊生产性能及氮平衡的迈响选用12 ／q安装有永久性瘤胃窿管及十二指肠疹管的内蒙古半细毛羊渴羊，随机分成4组，每组3个重复，饲给4种不同阴阳离子水平日粮，以研究在大量饲g玉米秸秆条件下DCAB对绵羊干物质采食量（DMI人体重变化及氮平衡的形响。

X=0, 11, 22, 33, 44, and 55 borophosphate glasses series have investigated, and it is found that:(1) both the covalency bonding between Yb〓 ion and oxygen ion and the asymmetry in local structures surrounding Yb〓 ion have strong effects on integrated absorption cross section ∑〓 and emission cross section σ〓 of Yb〓 ion in borophosphate glasses;(2) the borophosphate glasses and borate glasses appear superior as Yb-gain media to the phosphate glasses, although the phosphate glasses have been demonstrated as the most appropriate Ndgain media.

在第二章中，我们对〓（x=0，11，22，33，44，和55）系列的掺Yb〓硼磷酸盐玻璃的吸收光谱和发射光谱特性进行了研究，结果表明：（1）在硼磷酸盐玻璃中，Yb-O键的共价键成分和Yb〓离子周围的近邻结构的对称性两个因素对积分吸收截面∑〓和受激发射截面σ〓的影响都很大；（2）尽管磷酸盐玻璃是最合适的掺钕激光增益基质，但是作为掺镱的激光增益基质，硼磷酸盐玻璃和硼酸盐玻璃都要优于磷酸盐玻璃。

Objective To further vertify the bioactivities and mechanism of piperine and to investigate the effect of piperine on the ion channel of insect cytes, the toxicity and lethal effect of piperine against Culex pipiens pallens larvae and Spodoptera frugiperda cell line were investigated under the laboratory conditions.

目的研究胡椒碱对淡色库蚊幼虫和草地贪夜蛾 Sf-21细胞的毒力作用和后致死作用，进一步揭示胡椒碱的作用机制及作用方式，以便进一步研究其对昆虫细胞离子通道的影响。

Adsorption behavior of Diamyl phthalate by sediment of Yellow River was discussed by solid phase extraction, high performance liquid chromatography and UV spectrophotometry method.

利用固相萃取-高效液相色谱和紫外分光光度法讨论黄河兰州段沉积物对水体中邻苯二甲酸正二戊酯的吸附行为及各种因素如温度、离子强度、pH值和有机物含量对其吸附行为影响。

This paper has studied the application of eluant online generated method, gradient elution and concentrated method to meet the requirement of accurate measurement of super trace chloride and sulfate in water quality of the nuclear power plant, under the condition of using the separate column which has high selection of hydroxide.

研究了在新型离子色谱中采用淋洗液在线发生技术和对OH-选择性高的分离柱的条件下，建立适当的梯度淋洗程序和样品浓缩富集方法，以满足对核电水质中超痕量Cl-和SO2 -4进行准确测定的要求。

This paper has studied the application of eluant online generated method, gradient elution and concentrated method to meet the requirement of accurate measurement of super trace chloride and sulfate in water quality of the nuclear power plant, under the condition of using the separate column which has high selection of hydroxide.

研究了在新型离子色谱中采用淋洗液在线发生技术和对OH-选择性高的分离柱的条件下，建立适当的梯度淋洗。序和样品浓缩富集方法，以满足对核电水质中超痕量Cl-和SO2 -4进行准确测定的要求。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐